What functionality is missing? What is unsatisfying with the current situation?

I have about 150 npc articles that needs to be maintained. i put them in different categories so that there they split up. The difficulty is that i would like to switch fast from one to the next article, make my adjustments and go on.   To make this possible, i have to set the previous and next acticle under Navigation -> Linear Navigation.   There should be a button to set this as the order (sorting) of the category.  

How does this feature request address the current situation?

  If ther was some kind of mechanism, that would set my prvious and next article, i wouldn´t spent hour of doing it manually.  

What are other uses for this feature request?

  This Featur becomes even mor useful when you put the article in a different category where articles are that have articles in their previous and next linear navigation.   This way you can re-set thoese with a push of a button.